The Formation of Vegetable Mould Through the Action of Worms: With Observations on Their HabitsAppleton, 1892 - 326 pagini |
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Pagina 7
... present volume . This mould is generally of a blackish colour and a few inches in thickness . In different districts it differs but little in appearance , although it may rest on various subsoils . The uniform fineness of the particles ...
... present volume . This mould is generally of a blackish colour and a few inches in thickness . In different districts it differs but little in appearance , although it may rest on various subsoils . The uniform fineness of the particles ...
Pagina 53
... present ; and the activity of an alkaline juice is arrested by " acidification , and hindered by neutraliza- " tion . " 66 Therefore it seems highly probable that the innumerable calciferous cells , which are poured from the four ...
... present ; and the activity of an alkaline juice is arrested by " acidification , and hindered by neutraliza- " tion . " 66 Therefore it seems highly probable that the innumerable calciferous cells , which are poured from the four ...
Pagina 54
... quite subordinate importance , seeing that the object is already attained by stones being generally present in the gizzards and intestines of worms . CHAPTER II . HABITS OF WORMS - continued . Manner 54 CHAP . I. HABITS OF WORMS .
... quite subordinate importance , seeing that the object is already attained by stones being generally present in the gizzards and intestines of worms . CHAPTER II . HABITS OF WORMS - continued . Manner 54 CHAP . I. HABITS OF WORMS .
Pagina 121
... present quite unknown . They are easily killed by salt - water , and it does not appear probable that young worms or their egg - capsules could be carried in earth adhering to the feet or beaks of land - birds . Moreover Kerguelen Land ...
... present quite unknown . They are easily killed by salt - water , and it does not appear probable that young worms or their egg - capsules could be carried in earth adhering to the feet or beaks of land - birds . Moreover Kerguelen Land ...
Pagina 145
... present state of the ground beneath the old beech - trees in Knole Park , where worms appeared to be absent , was striking . A narrow path running across part of my lawn was paved in 1843 with small flag- stones , set edgeways ; but ...
... present state of the ground beneath the old beech - trees in Knole Park , where worms appeared to be absent , was striking . A narrow path running across part of my lawn was paved in 1843 with small flag- stones , set edgeways ; but ...
Alte ediții - Afișează-le pe toate
The Formation of Vegetable Mould: Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1896 |
The Formation of Vegetable Mould, Through the Action of Worms, with ... Charles Darwin Vizualizare completă - 1898 |
The formation of vegetable mould, through the action of worms, with Charles Darwin Vizualizare completă - 1897 |
Termeni și expresii frecvente
accumulated acetic acid acid action of worms alimentary canal amount angle animals apex appear basal base Beaulieu Abbey beneath the surface blown bodies brought buried burrows calciferous carbonic acid cells cent chalk Cloth concrete covered depth disintegration doubt dragged drawn earth feet field flints floor formed fragments gizzards glands grass ground heavy rain Hensen holes Illustrations inches beneath inches deep inches in thickness inches thick intestines JOSEPH LE CONTE Knole Park lamellæ land large number larvæ layer leaf leaves ledges Leith Hill Place lime Maer Hall manner matter mortar mouths nearly objects observed particles pasture pavement penetrated Perrier petioles pharynx places ploughed plugging pots probably Roman villa rubbish sand seen seized side Silchester slope soil species square yard Stonehenge stones subsided swallowed tesselated tiles tips trench triangles triturated turf upper vegetable mould walls washed weather weight whilst worm-castings worms
Pasaje populare
Pagina 1 - II. Physics and Politics ; or, Thoughts on the Application of the Principles of "Natural Selection " and " Inheritance
Pagina 2 - XVIII. THE NATURE OF LIGHT. With a General Account of Physical Optics.
Pagina 2 - XXIII. Studies in Spectrum Analysis. By J. Norman Lockyer, FRS With six photographic Illustrations of Spectra, and numerous engravings on Wood.